Because iOS 8 has just been released, Apple still supports the last iOS 7 version before it, in this case iOS 7.1.2. This means any iOS device users who want to switch back to iOS 7.1.2 can do so immediately, without any hassles or tricky procedures.

As the publication explains though, the downgrade window is limited, because Apple will surely close its iOS 7.1.2 support in the very near future.

It should go without saying the downgrade procedure can’t be performed on iPhone 6 devices that come with iOS 8 preinstalled – and one shouldn’t have any reason to do so in the first place. Furthermore, iPhone and iPad users need to know that a computer with iTunes on it is required to force the iOS 7.1.2 install on the phone. There’s no way to downgrade an iOS device without using iTunes.

That said, the full guide on how to download iOS 7.1.2 and install it on a pre-2014 iOS device that was recently updated to iOS 8 is available at the source link.